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This is an automatically generated e-mail. To reply, visit:
<a href="https://git.reviewboard.kde.org/r/120402/">https://git.reviewboard.kde.org/r/120402/</a>
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<p style="margin-top: 0;">On setembre 28th, 2014, 8:53 a.m. UTC, <b>Michal Malek</b> wrote:</p>
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<a href="https://git.reviewboard.kde.org/r/120402/diff/1/?file=315608#file315608line124" style="color: black; font-weight: bold; text-decoration: underline;">src/rip/videodvd/k3bvideodvdrippingpreview.cpp</a>
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(Diff revision 1)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">void K3b::VideoDVDRippingPreview::cancel()</pre></td>
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<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">124</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span><span class="p">(</span> <span class="n">exitStatus</span> <span class="p">)</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">I suggest using more readable form:<br style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;" />
if( exitStatus != QProcess::NormalExit )</p></pre>
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<p>On setembre 28th, 2014, 9:32 a.m. UTC, <b>Johannes Obermayr</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">Isn't the CPU faster on "if( !exitStatus )"? It doesn't need to load value of QProcess::NormalExit (= 0).<br style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;" />
IMHO comment "// exitStatus != QProcess::NormalExit" would be enough if really necessary.<br style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;" />
Yes, today CPUs are fast enough to do the slower thing but better optimize if we can ...</p></pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">But you are relying on people reading the code knowing that exitStatus == 0 is the good thing, you're doing the bad kind of optimization, one that gives you 0.000000000000000000000000000001% speedup but makes the code much harder to read for a third person. I also vote for <br style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;" />
if( exitStatus != QProcess::NormalExit )</p></pre>
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<p>- Albert</p>
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<p>On setembre 28th, 2014, 8:16 a.m. UTC, Johannes Obermayr wrote:</p>
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<div>Review request for K3b.</div>
<div>By Johannes Obermayr.</div>
<p style="color: grey;"><i>Updated set. 28, 2014, 8:16 a.m.</i></p>
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<b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>
<a href="http://bugs.kde.org/show_bug.cgi?id=268680">268680</a>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
k3b
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">None</p></pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">None</p></pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>src/rip/videodvd/k3bvideodvdrippingpreview.cpp <span style="color: grey">(0c36c97)</span></li>
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<p><a href="https://git.reviewboard.kde.org/r/120402/diff/" style="margin-left: 3em;">View Diff</a></p>
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